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文章摘要
基于GIC对电网变压器偏磁特性的研究
Research on transient effect and magnetic bias characteristics of power grid transformer based on GIC
Received:August 05, 2020
Revised:August 19, 2020
DOI：
10.19753/j.issn1001-1390.2021.02.005
中文关键词
:
地磁暴
地磁感应电流
变压器
励磁特性
CDEGS
英文关键词
:
Geomagnetic storm
Geomagnetic induction current
Transformer
Excitation characteristic
CDEGS
基金项目
:
国家自然科学基金项目（ 51707113）
Author Name
Affiliation
E-mail
Jiang Pengliang
College of Electric Power Engineering
,
Shanghai University of Electric Power
,
China
842716668@qq.com
Zhao Wenbin
*
College of Electric Power Engineering
,
Shanghai University of Electric Power
,
China
842716668@qq.com
Lu Wu
College of Electric Power Engineering
,
Shanghai University of Electric Power
,
China
842716668@qq.com
Shen Hao
State Grid Electric Power Research Institute
,
Anqing
,
China
842716668@qq.com
Wu Xingwang
Power Science Research Institute of State Grid Anhui Power Hefei
842716668@qq.com
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中文摘要
:
为研究地磁暴产生的地磁感应电流(GIC)对变压器励磁特性的影响,以中国安徽地区的蒙城观测台所测得地磁波动数据和皖南地区大地土壤电阻率参数为基础,建立该地区交流网架模型,基于平面波法计算得到地磁暴期间地磁场和地磁感应电流(GIC)分布,并通过变压器UMEC模型,分析GIC对所分析地区变压器励磁特性的影响,利用CDEGS实现地磁场、电力系统网架与GIC侵害变压器的联合仿真,进一步确定地磁暴期间GIC计算与风险评估。结果表明：受强太阳风暴的影响,地磁暴对所分析地区交流电网造成强烈冲击影响,其电网中所感应到的GIC要比直流输电的影响大得多,同时造成变压器励磁电流的峰值增大。文中所提方法能够为电力系统中GIC的计算与其对变压器偏磁特性的影响提供参考。
英文摘要
:
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